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Finding the Fourth Proportional to 341,570.04, 470,323.20 and 309,530.49

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Solution

The fourth proportional to 341,570.04, 470,323.20 and 309,530.49 is: 426,206.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,570.04 : 470,323.20 = 309,530.49 : x
  2. Step 2: Convert to fraction form
    341,570.04/470,323.20 = 309,530.49/x
  3. Step 3: Cross multiply
    341,570.04x = 470,323.20 × 309,530.49
  4. Step 4: Simplify right side
    341,570.04x = 145,579,370,554.37
  5. Step 5: Solve for x
    x = 145,579,370,554.37/341,570.04
  6. Step 6: Final answer
    x = 426,206.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.